// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>

#include "runtime_types.h"
#include "map.h"

// Construct a map from an initializer.

struct __go_map *
__go_construct_map(const struct __go_map_descriptor *descriptor,
	uintptr_t count, uintptr_t entry_size,
	uintptr_t val_offset, uintptr_t val_size,
	const void *ventries)
{
	struct __go_map *ret;
	const unsigned char *entries;
	uintptr_t i;

	ret = __go_new_map(descriptor, count);

	entries = (const unsigned char *)ventries;
	for (i = 0; i < count; ++i) {
		void *val = __go_map_index(ret, entries, 1);
		__builtin_memcpy(val, entries + val_offset, val_size);
		entries += entry_size;
	}

	return ret;
}
